Orange Shortbread

From gourmet.

Preheat oven to 375f.

Blend together butter , superfine sugar , zest , and salt in a bowl with a fork.

Sift flour into butter mixture and blend with fork until mixture forms a soft dough.

Transfer dough to an ungreased large baking sheet and pat into a 10- by 5-inch rectangle.

Prick dough all over with fork and sprinkle with coarse sugar , pressing it gently into dough with your finger.

Score dough crosswise with back of a knife into 6 rectangles , then score each rectangle into 2 triangles.

Bake shortbread in middle of oven until edges are golden but center is pale , 12 to 17 minutes.

Cool on baking sheet on a rack 10 minutes , then cut into 12 triangles along scored lines while still warm.

Transfer triangles with a long spatula to a rack to cool completely.

Shortbread keeps 1 week.

unsalted butter, superfine sugar, orange zest, salt, all-purpose flour, coarse sugar